Funny you should say that because Taco Bell and Doritos have had cross brand stuff with Taco Bell having different flavoured shelled tacos with Dorito seasoning.
I like hard shelled tacos but prefer soft shells. Hard shells break apart on me making a mess.
Thats why I am a soft shell kinda guy.
That's actually kind of nightmare fuel.
And for the record, if you really want the best tacos, you get soft shell that are lightly fried after they've been filled.